r216799 - in /trunk/gcc: ChangeLog gimple-fold....

[rguenth@gcc.gnu.org]

Author: rguenth
Date: Tue Oct 28 14:23:27 2014
New Revision: 216799

URL: https://gcc.gnu.org/viewcvs?rev=216799&root=gcc&view=rev
Log:
2014-10-28  Richard Biener  <rguenther@suse.de>

	* gimple-fold.h (follow_single_use_edges): Declare.
	* gimple-fold.c (follow_single_use_edges): New function.
	(gimple_fold_stmt_to_constant_1): Dispatch to gimple_simplify.
	* tree-ssa-propagate.c
	(substitute_and_fold_dom_walker::before_dom_children): Allow
	following single-use edges when folding stmts we propagated into.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/gimple-fold.c
    trunk/gcc/gimple-fold.h
    trunk/gcc/tree-ssa-propagate.c